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2007-11-11 06:19:38 · 13 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

13 answers

well most of the people that posted here are completely wrong. the universe is NOT infinite and no credible scientist believes so. when the big bang came about the idea of an infinite universe died.

the observable universe is about 46.5 billion light years in any direction from earth, so about 93 billion lightyears across. i say visible universe because most scientists believe that the early universe expanded faster than the speed of light, so there will always be a part of the universe that is out of view, scientists think most of the universe is out of view. and before anyone questions the fact that it expanded faster then the speed of light they need to go do some research, the laws of physics in the universe were completely different for the first few moments.

i just found this. http://en.wikipedia.org/wiki/Observable_universe#Misconceptions
its great and should clear up several things.

2007-11-11 06:42:15 · answer #1 · answered by Anonymous · 0 0

In Big Bang cosmology, the observable universe is the region of space bounded by a sphere, centered on the observer, that is small enough that we might observe objects in it (there has been enough time for light emitted by an object to arrive at the observer).

The word "observable" has nothing to do with whether modern technology actually permits us to detect radiation from an object in this region. It simply means that it is possible for light or other radiation from the object to reach an observer on earth.

The observable universe is 46.5 billion light years in all directions, so the observable universe (from our perspective) is a sphere 93 billion light years in diameter.
The actual universe could be much larger, but we have no way of knowing (either theoretically or visually).

2007-11-11 06:30:25 · answer #2 · answered by Anonymous · 0 0

Hi,

Big Enough To Fit Inside Our Minds, Holographically.

2007-11-11 06:27:50 · answer #3 · answered by Anonymous · 0 0

The correct answer to this question is that no one knows the full extent of space. However, scientists and astronomers, using their best optical telescope equipment have been able to see objects in space at a distance of 13 Billion Light Years in all directions from Earth. Using Radio Telescopes scientists have been able to detect objects in deep space at distances of 40 Billion Light Years. So, we can "see" objects out as far as 13 to 40 Billion Light Years away before our equipment fails us. Therefore, space is at least that deep, and most likely "far deeper" than that.

Were you to desire to compute the distance represented by 40 Billion Light Years, you could multiply:

6 Trillion (Miles) x 40 Billion = ??? Write down that number.

That is the radius of a sphere which is the maximum distance we can "see" from Earth, or from space telescopes orbiting Earth. Also, please note that the limit of 40 Billion is only due to the limitations of our observational devices.

Note: There are roughly 6 trillion miles in one light year.

2007-11-11 08:28:05 · answer #4 · answered by zahbudar 6 · 0 0

first no one knows how big it is right now. We BELIEVE that it started from a big bang singularity and then expanded from there. Also we believe that it is also expanding at the near speed of light so attempting to measure it's size would be some what impossible.

2007-11-11 06:30:53 · answer #5 · answered by Brad W 1 · 0 0

it infinite which means it contineusly expanding it has no limit to how big it can get. but there is a theory called the big crush or somethin theory that says the universe will crush itself.

2007-11-11 06:25:05 · answer #6 · answered by Joe E 1 · 0 0

The universe is infinitely large - we think.

2007-11-11 06:29:22 · answer #7 · answered by dukefenton 7 · 0 0

even tho we dont no exactly, the universe is truely big, too big too explore, just imagine if we were as big as a bacteria in our solar solar system, dats pretty big

2007-11-11 06:23:45 · answer #8 · answered by Mz. Complicated 1 · 0 0

about 14 billion light years across (the time it would take light to travel 14 billions years)

2007-11-11 06:22:34 · answer #9 · answered by Anonymous · 0 0

the universe is infinite, it never ends...

sounds scary huh?

2007-11-11 06:26:59 · answer #10 · answered by Anonymous · 0 0

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